Dallas Chris Kaman is out with a concussion, one suffered in practice after a hard fall where his head hit the floor.

Kaman doesn’t get to decide when he can come back. Neither do the Mavericks or their team doctors. Under the NBA’s new concussion protocol instituted last year, Kaman has to pass a mental test after a level of physical exertion that shows he is all the way back.

“I got to take it tomorrow,” he said (of the concussion test). “It’s the stupidest test ever. For so many years in the NBA, they never had to do that stuff and now they come up with all that concussion protocol crap. It’s not cool, but it is cool, I guess. It keeps people safe. I just try to do the right things and wait until I can pass the test.”

Why the tests? Well, Kaman’s next statement explains it.

“I’m still having a little headache,” he said. “Hopefully, it’ll progress, I’ll take that test, pass it and hopefully be able to play sooner or later. I’m tired of sitting around. I’d rather be playing, but at the same time I understand there’s a proper way to do things medically to keep people safe.”

Players want to play. They will lie to coaches to do so and coaches are happy to be lied to if they get a player back. Team doctors are paid by the team, not the players, so you can decide where their interests lie.

So the NBA set up a system where players take a baseline test before the season then after a concussion need to get back to near that baseline before a league neurologist lets them back on the court. It’s not in the players hands, not in the team’s hands, it’s a decision made by a neutral third party.

NEW ORLEANS (AP) — The New Orleans Pelicans say rookie guard Frank Jackson won’t make his NBA debut this season after having follow-up surgery to remove residual scar tissue from earlier right foot operations.

The Pelicans say Jackson also received an injection in his foot.

The club says a specialist in New York handled Jackson’s latest procedure.

The Pelicans acquired the 6-foot-4 Jackson through a draft-night trade with the Charlotte Hornets, who selected the former Duke player with the first pick of the second round last summer.

Following the draft, the Pelicans signed Jackson to a three-year contract at the NBA minimum with two years guaranteed, but Jackson needed a second foot surgery last summer to address a setback following his initial surgery last May.

Anyone who watched the Thunder’s win over the Raptors Sunday afternoon in Toronto — especially the final few minutes — thought it was not referee Marc Davis and crew’s finest hour. There were missed calls and three-straight ejections of Raptors players, which all seemed rather hair-trigger (especially coach Dwane Casey, who was tossed for something a fan behind him said).

According to the report, there was only one missed call in the final two minutes: Carmelo Anthony held Pascal Siakam as a pass came to him with 11.7 seconds left, and that should have been called.

What about the play that set DeMar DeRozan off and ultimately got him ejected, the drive to the basket with 33 seconds left (and the Raptors down two) where DeRozan thought Corey Brewer fouled him? The report said that was a good no call:

DeRozan (TOR) starts his drive and Brewer (OKC) moves laterally in his path and there is contact. The contact is incidental as both players attempt to perform normal basketball moves….

RHH shows Brewer (OKC) make contact with the ball and the part of DeRozan’s (TOR) hand that is on the ball. The hand is considered “part of the ball” when it is in contact with the ball and therefore, contact on that part of the hand by a defender while it is in contact with the ball is not illegal.

(I didn’t see it that way, I think the contact was more than incidental, and to me looking at the replay Brewer catches some wrist and impedes the shot in a way that was not legal. Just my two cents.)

The report does not cover the ejections, which are reviewed by league operations but not part of this report.

Three thoughts out of all this:

1) Raptors fans/management/players have every right to feel the calls went against them in this game. As for calls always going against them — as DeRozan complained about after the game — 29 other teams and fan bases are convinced the officials have it out for them, too. I never bought that.

2) The Raptors didn’t lose this game solely because of the officiating. Russell Westbrook was clutch down the stretch, the Thunder were part of it, and the Raptors had other issues, too (Serge Ibaka had a rough game, for example).

3) This loss also does not say a thing about the Raptors in the postseason (even if they went a little too much isolation at the end) — this was their third game in four days, they looked tired and flat at the end. That will not be the case in the playoffs.

Butler is chomping at the bit to return from his knee injury. He sat on the Timberwolves’ bench during their loss to the Rockets last night wearing what appeared to be typical attire for a sidelined player. But dig deeper, and…

Marc Stein of The New York Times:

There's only one @JimmyButler (Exhibit Infinity): Butler sat on the Wolves' bench last night for the first time since his recent injury and word is he wore a distinctly Jimmy item under his blazer and t-shirt … his game jersey